125461113161 has 4 divisors (see below), whose sum is σ = 130915944192. Its totient is φ = 120006282132.

The previous prime is 125461113131. The next prime is 125461113179. The reversal of 125461113161 is 161311164521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125461113161 - 2²⁶ = 125394004297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125461113121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2727415481 + ... + 2727415526.

It is an arithmetic number, because the mean of its divisors is an integer number (32728986048).

Almost surely, 2^125461113161 is an apocalyptic number.

It is an amenable number.

125461113161 is a deficient number, since it is larger than the sum of its proper divisors (5454831031).

125461113161 is an equidigital number, since it uses as much as digits as its factorization.

125461113161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454831030.

The product of its digits is 4320, while the sum is 32.

Adding to 125461113161 its reverse (161311164521), we get a palindrome (286772277682).

The spelling of 125461113161 in words is "one hundred twenty-five billion, four hundred sixty-one million, one hundred thirteen thousand, one hundred sixty-one".